Cabureter.



E. A. RUMELY.

. UARBURETERQ APPLIOATION FILED JAN. 10, 1910.

Patented Mar;4,191 3.

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from the pipe B "UN TED v PATENTQFFiE v EDWARD A. RUMELYQOF Laronrn-rnnmne; nssrenon TO M. :RU

,or LAPORTE, INDIANA, A coRroRA'rIoN or INDIANA To all whom it may concern:

Be it known that I, EDWARD A. RUMELY, a citizen of the United States, residing at Laporte, in the county of Laporte andState of Indiana, have invented a certain new and useful Improvement in Carbureters, of which the following is a specification,

My invention relates to improvements and one application ofit'is 3-3 of Fig. 1; Fig. 4;- is a vertical sectionshowing-the shutter in position for minimum power. v r

Like parts are indicated by the same letter in allthe figures;

A is a shell which with the the mixing chamber A B is a hydrocarbon or fuel valve supplied and provided with the nozzle B which discharges into the mixing chamber. 0 is a similar liquid or water wall Al forms valve provided with the supply pipe 0 and which discharges into the with the nozzle C mixing chamber. he A .D is a mixture discharge port and D the connection which leads thence to the engine.

- E is the air supply port provided with a shutter which consists as here, illustrated-of a series of dove-tail slats E .E E is a passagewayleading to the air supply port." I l a F is a slide valve adapted, to control as indicated the mixture discharge port and the air supply port and it is controlled in any desired manner or byany desired motive power by means of the connecting rod F which passes out through the case, F being an aperture in the slide valve F.

I have spoken of hydrocarbon andwater valves but the essential pointis that I connecttp the mixer a hydrocarbon and a water supplypipe. The valve is only for the purpose ofadjusting the size of the'aperture but in each case the oil or water is drawn from the en 1 i e b the vacuum in the pp y p p y .valve or either or both of them as the case may be, the parts will ultimately assume a mixing chamber. It is that vacuun which causes the fluid to flow and by varying the vacuum the flow of fluid is varied. The ar- .rarger .ent of parts must therefore besuch as to bring about this result. In other words, the liquid supply p pes may be GARBURE'IER.

v I Specificatibn'of Letters Patent. 5 Application fiied'ianuar io, 191p. Serial in. 537,202.

Iiworked w'ithout any valveiii either ofthem,

water supply is separately operative and may be d spensed with. The deviees,-whatever they are, whether 'needl'e valves or any the oil'or fuel will flow witlranydegree of vacuum and so that the water will only begin to flow at a relativelyhigh vacuum In other words, the two valvesdo not respend equally to the same-vacuum As the rapid than the increase in flow of fuel-re sponsive to the increasing vacuum.

might be employed to provide a variably adjustable'shutter or airport.

a carbureter which is adapted to be supplied with both fuel and water, but the use of fuel and water under. the conditions liere set out and in the mannenheredescribed, is no part of my invention.

be filed. My invention has to do with, in the concrete form here shown, a-sectional shutter.

are as follows: As the draws its charge from and through thecarbureter and because ofthe relation between ply port a vacuum is formed in the mixing chamber. This vacuum draws 'hy drocarbon pipes. If nowthe parts be adjusted "as in: dicated in Figs. 1 andQ the valve in. its

ment of the shutter and the'fuel or water position wherefor maximum powers there will be a substantially perfect combustion. In View now, of the sectional character of vacuum increases after the. water begins'to vflow the increase in flow of water 15 more It is the invention of another, applicatlcns on w]. ch are about to though in'the convenient form of the device" g I en1ploy, as illustrated, needle valves. The

other'mechani'sm, should be adjusted so that Thave here illustrated anoperative device p i. "but since the structure may be greatly varied much different from the slat-formed shutter I I have shown my invention "as applied to The use and operation of my invention engine operates 1t the mixture discharge port and theair supand water from their respective supply lowerposition, leaving the mixture dis charge port wide open, by a properadpistthe shutter in the particular form shown, I

these several sections can be adjusted for each proportionate variation in power so that practically perfect combustion can be had for each successive position of the valve. If the sections were infinite in number the adjustment could be made theoretically for'eaeh possible position. for practical purposes a limited number of adjustable sections will suflice. On the other hand, by the use of this sectional shutter or a proper calculation, a shutter with an edge of a certain shape or curve could be designed which, as respects any given engine, would give the desired results. In either case there would bea variation of the effective area of the air inlet by varying increments and in the case of the sectional shutter or its equivalent it would be possible to make an adjustment for each of the several positions to bring about the desired result. The shutter sections could be arranged so as to be held in their proper position by friction, but if desired, means for securing them in position when the adjustment has once been made could be applied. In practice it would be probably best to leave the liquid opening always of the same effective area as that for which it was fixed at the maximum power. I have shown the sectional shutter and its devices in connection with the air admission port but it-is quite possible that a device operating along thelines suggested. could be applied to the air admission or the mixture discharge or both.

For full load it will be understood that the valve F must be pushed down to its lowest position The upper part of the air inlet port is then uncovered and the adjustable shutter sections which. are then un.

covered must at that time be permanently ad usted for maximum load. As the valve .rises the discharge opening and upper part of the air inlet aresteadily decreased and by manipulating the shutter sections which are covered in the position for maximum power, a suitable relation between the discharge and intake openings may be obtained for each successive position of the valve. Such adjustments of the shutter sections which are from time to time uncovered as the valve rises, may be made each without in any way interfering with the adjustment previously made for the others for any prevlous position.

Water may be introduced in connection with the hydrocarbon since the introduction of water along with the fuel tends to increase the efficiency of the engine, the reason for this being that the water is broken down into its component parts of oxygen and hy-i drogen at the beginning of the power stroke when the temperature is very high, thus absorbing a large quantity of heat which would otherwisepass away into the cylinder walls and then into the acket. As the tempera Of course passes out with the discharged. gases depriv'ed of a large portion of the heat which it absorbed at the beginning of the stroke. Thisleads to a more even distribution ofthe heat during the stroke and causes a more even pressure in the cylinder. The water, which may be introduced with the hydrocarbon, is first heated during the inhalation stroke by the heat of the cylinder. It then absorbs some of the heat of compression during the compression stroke, probably being vaporized. It then is further heated during the working stroke during which it may act as superheated steam or may be dissociated into its component parts, hydr0- gen and oxygen. If this occurs, the oxygen is united with the excess carbon. In any case the temperature at the initial point of the power stroke will be decreased and this temperature decrease will continue until the oxygen and hydrogen again combine to form water. Beyond this point the temperature and pressure will be greater than it would be without the previous addition of water. This results in an increase in thermodynamic efliciency by maintaining the mean effective pressure at a higher point during the working stroke even though the initial pressure at the beginning of such stroke is thereby decreased.

It will be understood, of course, that my invention is applicable to the use of any kind of hydrocarbon fuel such as oil, gasolene, alcohol and other similar fluids.

1. In a carbureter, a mixing chamber having a fuel inlet, a port for the discharge of the mixture and a port for the admission of air, in combination with a device for varying the effective area of one of the ports, said device containing a series of separately adjustable sections.

2. In a carbureter, a mixing chamber having a fuel inlet, a port for the discharge of the mixture and a port for the admission of air, in combination with a device for varying the eifective area of the air admission port, said device containing a series of separately adjustable sections.

3. In a carbureter, a mixing chamber having a fuel inlet, a port for the discharge of the mixture and a port for the admission of air, in combination with means for varying the effective area of one of said ports at each of several positions without disturbing the area of such port so fixed for other posi- .'t1ons to adapt such area for variations in power.

4. In a carbureter, a mixing chamber having a fuel inlet,,a port for the discharge of the mixture, and aport for the admission of Cii air, in combination with means for varying the effective area of the port for the ad mission of air at each of several positions without disturbing the area of such port so fixed ,for other positions to adapt such area foryariations in power;

5. In a carbureter, a mixing chamber having a fuel inlet, a port for the discharge of the mixture and a' port for the admission of an, in combinatlon. with a valve for varylng the area of the air admission port and a sectional shutter for varying the area of the air admission port.

6. In a carbureter, a mixing chamber having a fuel inlet, a water inlet, the two adapt- 15 ed so as to respond to different degrees of vacuum, a port for thedischa rge of the mixture, and a port for the admission of air, in combination with means for varying the effective area of one of the ports by varying 2 increments.

, EDWARD A. BUMELY. a 5. Witnesses! E. I. TUoKLoNIUs, Jos. J .'RUMELY,

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patent- Washington, D. C. 

